Geodesic
Pointwise strong and very strong approximation by matrix means of Fourier series
Commentationes Mathematicae, Tome 48 (2008) no. 2, pp. 177-198.

Voir la notice de l'article provenant de la source Annales Societatis Mathematicae Polonae Series

We generalize and extend the some results of the paper [6]. Considering a wider class of function and more general means we obtain the results of the V. Totik type [8, 9].
DOI : 10.14708/cm.v48i2.5271
Mots-clés : Strong and very strong approximation, Rate of pointwise summability, Matrix means 
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Włodzimierz Łenski; Bogdan Szal. Pointwise strong and very strong approximation by matrix means of Fourier series. Commentationes Mathematicae, Tome 48 (2008) no. 2, pp.  177-198. doi : 10.14708/cm.v48i2.5271. http://geodesic.mathdoc.fr/articles/10.14708/cm.v48i2.5271/

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